Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Archery Accuracy0.01871483675%6.7Harden
Average Character0.00271900173091%1.9Easyen
Black and White0.0759220616882%4.7Mediumen
Circle Bounce0.002001079488%5.0Mediumen
Diagonals0.001853664467%8.0Harden
Dorm Room Divide0.0147627319270%6.2Harden
Double Password0.00182685251494%1.5Easyen
Fail Them All!0.008991538656%7.8Harden
Hopscotch 5000.1187818513171%7.1Harden
Overdraft0.00361356121490%1.9Easyen
Problem Set Construction0.01940554175%6.1Harden
Reversibly Cyclic Strings0.003133128185%3.2Mediumen
Rise and Fall0.008835025874%4.5Mediumen
Scaling Recipe0.0034100391291%1.9Easyen
Shortest Missing Subsequences0.0939415311575%5.7Harden
Square Bounce0.00470634470%7.0Harden
Tetris Generation0.009043328365%5.9Harden
Tournament Seeding0.0122025621182%3.9Mediumen
Tree Hopping0.0289329321975%6.0Harden
Who Goes There?0.008848939280%3.5Mediumen
XOR Island0.002791228267%6.5Harden